val message = formatMessage(record)

    val time = Instant.ofEpochMilli(record.millis).atZone(offset)

    return if (record.thrown != null) {
      val sw = StringWriter(4096)
      val pw = PrintWriter(sw)
      record.thrown.printStackTrace(pw)
      String.format("%s\t%s%n%s%n", time.format(d), message, sw.toString())
    } else {
      String.format("%s\t%s%n", time.format(d), message)
    }
  }